From: Gary Duncanson (garyduncanson@btinternet.com)
Date: Thu Sep 11 2008 - 16:32:15 ART
I imagine CCO has configs that could help you. I realise you are not using
frame but ISDN was often used to back it up (still is in some places).
Replace frame relay with the synchronous line you are using. Alternatively
check the archives for any backup scenarios involving ISDN. A favorite topic
for CCIE back in the day.
HTH
Gary
----- Original Message -----
From: "Tom Hanks" <t_hanks_2007@yahoo.com>
To: <ccielab@groupstudy.com>
Cc: <t_hanks_2007@yahoo.com>
Sent: Monday, September 08, 2008 6:48 PM
Subject: Integrated Routing & Security Config (Over HDLC Primary Link and
ISDN Backup Link)
> Hello all,
>
> Can any one help please with the following:
>
> Branch router # 1 connects to regional router # 2 over HDLC primary link
> with OSPF running.
> Branch router # 1 connects to regional router # 3 over ISDN 128 K BRI back
> up link.
> Regional routers # 2 and #3 are connected to each each other via Ethernet
> link and colocated at same physical location.
>
> OSPF is running on primary link between Branch router # 1 and regional
> router # 2. If primary link fails, the backup link via ISDN 128K BRI
> should kick in automatically and connect Branch router # 1 and regional
> router # 3.
>
> IPSEC VPN point-to-point tunnels are configured between Branch router # 1
> and regional router # 2, and IPSEC VPN tunnel should also be running on
> the backup ISDN link when it kicks in.
>
> The interfaces on the branch side are 128K HDLC serial link, and on the
> regional router side are channelized E1 (to terminate 128K HDLC serial
> links from multiple branches) and E1/PRI to terminate 12k BRI ISDN links
> from multiple branches.
>
> I would appreciate if some genius out there could provide the integrated
> configs for the branch router and the regional router respectively, as
> have never tried the above scenario.
>
> Cheers !
>
>
> Blogs and organic groups at http://www.ccie.net
>
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